# 3343 Dunbier Loader Rear Swing x Member (from Oct, 2005) | Marine Trailer Part

🔧 Product Description

  

Dunbier Loader Rear Swing Crossmember - Standard Frame - Part Number: 3343

  

A galvanised pivoting rear crossmember for Loader trailers from October 2005. The swing action allows the rear roller assembly to follow the hull during launch and retrieval, while the frame width and tube section maintain the correct alignment for the trailer family.

  

⚙️ Key Features

  

• Pivoting rear crossmember

• Galvanised structural-steel construction

• Frame width: approximately 1465mm

• Section: 50mm square

• Accepts compatible rollers and adjustable stop

• Replacement for the factory rear swing member

  

📏 Specifications

  

• Section: 50mm square

• Frame width: 1465mm

• Application: Loader trailers from October 2005

• Adjustable stop: included on 3344/3345 or used separately as configured

  

🔄 Cross Reference & Related Parts

  

• Dunbier: 3343

• Adjustable stop: Dunbier 3341

• Standard/wide companion references: 3343/3343W and 3344/3345

• Roller assemblies: Dunbier 3330-3342

  

🚤 Trailer Compatibility & Application

  

• Suitable for Loader trailers from October 2005

• Pivot, stop and roller hardware must match the original installation

• Standard and wide-frame members are not interchangeable

  

🔌 Function

  

Allows the rear hull-support system to pivot during loading while tying the rear chassis rails together.

  

Common signs of wear or failure:

  

• Member is bent or twisted

• Pivot holes are elongated

• Galvanising is lost with deep corrosion

• Swing action binds

• Roller assembly no longer aligns with the hull

  

🛠️ Installation & Safety

  

• Support the trailer and boat before removing the pivot hardware

• Replace worn bushes, bolts and stop components

• Set the crossmember square to the chassis

• Confirm free swing without tyre or frame contact

• Tighten all retaining hardware and secure pins

  

📦 Condition

  

• Genuine Dunbier Marine Products part

• Brand new

• Supplied as one galvanised rear swing crossmember

• Supplied in original or equivalent packaging

## Details

- **Price:** 666.5 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 666.50 AUD | In stock |

## Images

- 3343 Dunbier Loader Rear Swing x Member (from Oct, 2005) | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3343-dunbier-loader-rear-swing-x-member-from-oct-2005)
> Updated: 2026-08-05